Bio Ball BBAL40 Bio Ball 40mm, 1000 pcs Please login for pricing SKU: BBAL40 Category: Filter Media Description Brand Description – Improve water quality in aquarium and pond – Keep pH balance of the water neutral – Diameter : 40mm – 1000 pcs / box Brand Absolute Aquariums Related products Please login for pricingFilter MediaAmmonia Neutralizing Crystals ANC500 Please login for pricingFilter MediaBiological Sponge SPGE151550 Please login for pricingFilter MediaMedClear COTTONROLL Please login for pricingAquascaping Products, Filter MediaPlastic Grid Please login for pricingFilter MediaMedClear COT220 Please login for pricingFilter MediaPre-Filter Bag FTS002